07. Exchange Variable Values

using System;
using System.Numerics;

namespace Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            int a = 5;
            int b = 10;

            Console.WriteLine("Before:");
            Console.WriteLine($"a = {a}");
            Console.WriteLine($"b = {b}");

            int temp = a;
            a = b;
            b = temp;

            Console.WriteLine("After:");
            Console.WriteLine($"a = {a}");
            Console.WriteLine($"b = {b}");
        }
    }
}